A new model developed by marine biologists at the University of Hawaiʻi at Mānoa and University of Alberta is providing insight into the impact of lionfish, a venomous predatory fish that has invaded more than 7.3 million square kilometers in the Atlantic

In anticipation of the final season of “Game of Thrones,” social media were abuzz with speculation that the dreaded white walkers were a parable of coming climate disruption. “Winter is here!” was the ominous warning. Fortunately, humanity was saved instantly by a single, well-placed stab by Arya Stark. Reality is much more challenging.